Note that whilst testing my cifs fixes with the generic/075 and generic/112 xfstests, the tests occasionally hit a bug in Samba whereby llseek() fails because there are too many extents in the server file for the server to report. I've noted this before: https://lore.kernel.org/linux-cifs/349671.1716335639@xxxxxxxxxxxxxxxxxxxxxx/ is there a fix for this I can try? David